If an object is located 20 m to the right of the origin at 1:00PM and later the object is located 30 m to the left of the origin at 2:00PM, then the displacement from 1:00PM to 2:00PM is,

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?